meteorologist chris warren joins us now. chris, with 677 tornados in april alone this is the deadliest year since 1936, not to mention these floods and this heatwave. what explain this is, chris? >> anne, during the springtime, we were stuck in a very active spring pattern. now that it's summer we're stuck in an active and persistent summer pattern with a big ridge of high pressure entrenched over the middle part of the country. the good news is we have relief on the way for the northeast by the end of the week. the jet stream and cooler air comes in from the north. however, by the time we head into the weekend that heat, the 90s and the triple digits, building back into the northern plains so no relief in sight at all for much of the south, in particular, the southern plains and, anne, keep in mind we're coming up on what's typically the hottest time of the year and that's july. >> thanks for the warning.